James b



( J. B. DUNW DY, J1;

SHUTTER BOWER.

No, 275,167 Patented Apr. 3, 1883.

IIIIILFIIIJ.

ATTORNEYS.

u. PETERS. ymwmw m. Wuhington. n. c

UNITED STATES PATENT OFFICE.

JAMES B. DUNWODY, JR, OF WALTERBOROUGH, SOUTH CAROLINA.

SH UTTER-BOWER.

SPECIFICATION forming part of Letters Patent No. 275,167, dated April 3, 1883.

Application filed September 7, 1882. (Modeh To all whom it may concern:

Be it known that I, JAMES B. DUNWODY,JI., of WValterborough, in the county of Oolleton and State of South Carolina, have invented a new and Improved \Vindow-Blind Operator and Fastener, of which the following is a full, clear, and exact description.

My invention consists of a spring-bar connecting the two blinds across the window at the corners opposite to those by which the blinds are hinged to the buildings, so that it afl'ords leverage by which to swing the blinds open or shut, and at the same time springs or hows in or out as the line between its joints shortens by the swing of the hinges, and by its extension holds the blinds shut or open, ac-

cording as they may be open or closed, all as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of a pair of window-blinds provided with my improved operator and fastener. Fig. 2 is a horizontal section of-the same when being closed by the spring; and Fig. 3 is a detail of the blindhinge in section.

a represents the blinds, which are hinged to thewindow-jambs b at c in the usual or any approved way.

dis the spring-bar, which I connect to the blinds across the window by hinge-joints c, said joints being located at the corners of the bar is to be constructed in suitable length to reach between the hinge-joints 6 when the blinds are open or shut, as in Fig. 1, and thus by its extension hold them in that position. It springs, as indicated in Fig. 2, to accommodate the shortening of the line between the joints 6 when the blinds are opened or closed. The leverage between joints (2 and 0 enables the blinds to be opened or closed by the bar, according as it is pushed out or in.

The bar (1 may consist of a thin flat strip of spring metal, as here shown, or it may be constructed in any approved form or contrivance.

Having [has fully described my invention, I claim as new and desire to secure by Letters Patent- In a shutterbower, the combination, with the shutters, ofthe spring-bar, pivot-jointed to the shutters at the corners opposite the shut-' ter-hinge pivots, and arranged to connect the shutters together at their inner edges and in a parallel plane to their inner sides, whereby it is adapted to be bowed inward to cause the bowing of the shutters or straightened to lock the shutters open back against the outside of the house, as shown and described.

JAMES B. DUNWODY, JR.

Vitnesscs:

GEo. It. FRASER, MELVIN CARTER. 

